2-bromopropane is changed into 1,2-dibromopropane by a route with two reactions. reaction 1: 2-bromopropane $\rightarrow$ compound X reaction 2: compound X $\rightarrow$ 1,2-dibromopropane What reagents and conditions are required for the two reactions?
- Aheat under reflux with aqueous NaOH; HBr$(g)$ at room temperature
- Bheat under reflux with aqueous NaOH; Br$_2(l)$ at room temperature
- Cheat under reflux with ethanolic NaOH; HBr$(g)$ at room temperature
- Dheat under reflux with ethanolic NaOH; Br$_2(l)$ at room temperature